Multipurpose Gears Numerous gear types for various projects.
Four Propellers Expand your creative possibilities.
Rubber Bands Essential for wind-up systems.
Colorful Kit Visually engaging for learning.
DIY Use Ideal for educational and hobby projects.

Product: Rack and pinion gear pulley plastic shaft set
Easy Replacement: Change gears effortlessly when damaged
Durable Material: Made of high-quality plastic
Long Service Life: For extended use
Comprehensive Set: Includes 34 types of gear
User-Friendly: Designed for ease of use